SEARCH Articles Figures Tables In replacement of aromatic fluonne Replacement of NH2 in aromatic compounds by Cl or Br (Schwechten reaction) Replacement of NH2 in aromatic compounds by iodine Replacement of NH2 in aromatic or heterocyclic compounds by fluorine (Schiemann reaction) Replacement of aromatic Replacement of hydrogen by halogen in aromatic compounds general Replacement of hydrogen by halogen in aromatic nitro compounds Replacement of hydrogen by halogen in phenols, hydroxyphenylalkanoic acids, aryl ethers, and aromatic amines